Update to new major release OpenLDAP 2.6.1
    
    - rediff all patches and remove patches now upstream
    - use upstream source location for check password module
      and rediff patch due to this
    - add patch to fix build issue in 2.5.4 (from upstream)
    - clean and sort buildreqs
    - remove various refs to bdb
    - remove now default -DLDAP_USE_NON_BLOCKING_TLS
    - add new modules and enable load balancer as module
    - disable wiredtired backend due to missing build deps
    - don't remove files that don't exist
    - let check-config work on *.mdb over legacy files
    - remove refs to old-style config
    - new soname names
    - remove libldap_r link as the library was merged with libldap
    - refactor openldap-compat package to support the transition from 2.4
    - add UPGRADE_INSTRUCTIONS for openldap-server upgrade
    
    The original patch was submitted by Fedora user - terjeros
    https://src.fedoraproject.org/rpms/openldap/pull-request/6
    
    Resolves: #1955293